Skip to main content

Williams AV IR SY21 D IR+ Large-Area Infrared Assistive Listening System with Dante, IR M1 D Modulator, 2 IR E4 Emitters, A4 Array, and 4 Receivers

Part #:
IR SY21 D
Model #:
IR SY21 D
Availability: 2+ Week Lead Time Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email sales@proacoustics.com or call us at 888-256-4112.
Certified Audio
Expertise
FREE Custom
System Design
Get Expert
Help Fast

Ask an Expert

Our expertly trained Sales Engineers are ready to help!

(888) 256-4112

Get a Quote, Price or Support Fast!

We want to make contacting us as fast and as easy as possible. Please reach out if you have any questions or concerns about our products, system design, technical support, or orders.
Phone Monday - Friday
8:00 AM - 5:00 PM
1-888-256-4112
Email Contact us by email or
our simple form.
SEND EMAIL
The Williams AV IR SY12 D IR+ complete infrared assistive listening system with Dante includes an IR M1 D modulator, two IR E4 emitters, and five IR RX20 receivers. It delivers secure, high-quality audio for assistive listening in professional and ADA-compliant environments.

Description

Williams AV IR SY21 D IR Plus Large-Area Infrared Assistive Listening System with Dante

The IR SY21 D IR+ large-area infrared assistive listening system with Dante is a professional, commercial-grade solution designed to deliver secure, high-quality audio across large spaces. Utilizing infrared transmission, it ensures private audio delivery that remains confined within the room, making it ideal for environments that require confidentiality and clarity.

At the center of the system is the IR M1 D infrared modulator, featuring a Dante input and built-in Wi-Fi support, which enables seamless integration with modern networked audio systems. The system includes IR E4 emitters and an IR A4 array to provide expansive and consistent coverage for large venues.

This complete package includes four WIR RX22-4N bodypack receivers, dual-bay chargers, earphones, and an ADA wall plaque for compliance. Designed for reliability and ease of deployment, the IR SY21 D is ideal for theaters, auditoriums, courtrooms, and houses of worship requiring large-area assistive listening solutions.

Features

  • Large-area infrared assistive listening system with Dante support
  • Includes IR M1 D modulator with Dante input and Wi-Fi capability
  • IR E4 emitters and IR A4 array for wide coverage
  • Secure IR transmission prevents signal leakage outside the room
  • Includes 4 WIR RX22-4N bodypack receivers
  • Dual-bay chargers and earphones are included for user convenience
  • ADA wall plaque included for accessibility compliance
  • Designed for commercial and large venue installations
  • Ideal for theaters, auditoriums, courtrooms, and worship spaces
  • Reliable, high-quality audio delivery for assistive listening needs

Specifications

IR M1 D Modulator
Power Supply 110-240 VAC input, +48 VDC output (international desktop supply)
Power Consumption 36W
Audio Inputs 2x XLR/TRS combo (mic/line, balanced/unbalanced, phantom power selectable)
Frequency Response 40 Hz - 16 kHz (+1 dB, -3 dB)
Dante Support Integrated Dante audio networking
Signal-to-Noise Ratio 67 dB (typical)
Dimensions (H x W x D) 1.75" (44.45 mm) x 19" (483 mm) x 8.2" (208 mm)
Weight 5.2 lbs (2.4 kg)
IR E4 Emitter
Power 48 VDC supplied by IR M1 via CAT 5e cable
Coverage Area Up to 18,000 (1670 m) square feet in single channel mode
Connectivity +48 VDC Power, RS-485 communication, and Baseband signals for IR transmission are all provided via a single CAT5e cable inserted into an RJ-45 jack from the IR M1
Operating Requirements 0-50ºC ambient temperature, non-condensing, non-corrosive atmosphere
Dimensions (H x W x D) 1.4" (35.56 mm) x 7.5" (190.5 mm) x 3.6" (91.44 mm)
Weight 0.8 lbs (0.36 kg)
IR A4
Power 48 VDC, 0.75A
Connectivity +48 VDC Power, RS-485 communication, and Baseband signals for IR transmission are all provided via CAT5e cable(s) inserted into an RJ-45 jack from the IR M1 and out to the IR E4(s)
Heat Dissipation 1W
Max Cable Length 328 feet (100 m)
Plenum Rating Not rated for use in plenum spaces and will need to be installed in a plenum box for use in such areas
Dimensions (H x W x D) 1.1" (28 mm) x 7.6" (193 mm) x 6.6" (168 mm)
Weight 2.4 lbs (1.09 kg)
WIR RX22-4N
Battery Type 2 x AA, alkaline (BAT 001-2) or NiMH (BAT 026-2)
Battery Drain 25 mA, nominal
Frequency Response 25 Hz to 16 KHz, +1 dB, -3 dB, electrical response
Total Harmonic Distortion Less than 1%, electrical response
Controls ON/OFF/VOLUME: combination thumbwheel knob
Channel Selector: four-position rotary switch
Dimensions (H x W x L) 1.2" (30.4 mm) x 3.86" (72.4 mm) x 4.1" (104.1 mm)
Weight 0.28 lbs (0.13 kg)

DOCUMENTS

System Includes

  • (1) IR M1 D Rack Mounter Infrared Modulator with Dante
  • (2) IR E4 Wall-Mounted IR Emitters
  • (1) IR A4 Distributed Emitter Array
  • (4) WIR RX22-4N Bodypack IR Receivers
  • (4) EAR 022 Surround Earphones
  • (2) BAT KT6 2-Bay Body-Pack Charger Kit
  • (1) IDP 008 ADA Signage
My Cart